Bats eat a surprisingly wide range of fruits, from wild figs and forest berries to cultivated crops like mangoes, lychees, and bananas. Of the 1,400+ bat species worldwide, roughly a quarter feed primarily on fruit, nectar, or pollen. These fruit-eating bats have been recorded consuming over 1,000 plant species across 148 plant families, with fruits making up about 71% of the plant parts they eat.
Wild Fruits That Make Up Most Bat Diets
Figs are one of the most important wild fruits for bats across the tropics. Several bat species, particularly the large-bodied flying foxes in the genus Pteropus, rely on various fig species as dietary staples. However, bats are surprisingly picky about which fig species they’ll eat. In feeding studies, bats have ignored certain fig species entirely while readily consuming others, suggesting they choose based on ripeness, nutritional content, and taste rather than simply eating any fig they find.
In the Americas, New World fruit bats gravitate toward pepper plants (Piper species), nightshades (Solanum species), and various tropical berries. Some species strongly prefer fruits that are high in protein and carbohydrates while avoiding fruits with high fiber content. In the Old World tropics, flying foxes eat a broader mix: figs, mangoes, guavas, dates, papayas, and dozens of other fleshy tropical fruits. The largest fruit bats, the Pteropus flying foxes with wingspans up to five feet, are the most generalist eaters. More than 25% of their diet includes flowers, nectar, and even leaves alongside fruit.
Cultivated Crops Bats Target
Fruit bats don’t distinguish between wild and cultivated fruit. Lychees, mangoes, bananas, guavas, dates, and papayas all attract bats when orchards border natural habitat. In Mauritius, the native fruit bat has been documented damaging roughly 25% of fruits on lychee and mango trees in surveyed orchards, costing the equivalent of about 15% of the country’s annual lychee export value. Smaller trees tend to suffer less damage, likely because bats prefer to feed from larger canopies where they can land and maneuver more easily.
This conflict between bats and fruit growers is one of the biggest conservation challenges for fruit bat species. Several countries have carried out culling campaigns in response to pressure from the agricultural industry, despite the ecological benefits bats provide through pollination and seed dispersal.
How Bats Actually Eat Fruit
Fruit bats don’t swallow fruit whole. They take small bites, crush the flesh against ridged palates in their mouths, suck out the juice, and then spit out the remaining fiber as dry pellets. This is remarkably efficient: the extracted juice passes through their short digestive systems in about 30 minutes or less, allowing them to process large volumes of fruit in a single night of feeding.
Seeds get handled differently depending on size. With figs, bats swallow roughly 80% of the seeds (around 128 out of an average 160 seeds per fig), and nearly all of those pass through the gut intact and viable. Larger seeds from other fruits get spat out with the fibrous pellets, often some distance from the parent tree. Large fruit bats have been documented carrying fruits weighing over 20 grams for hundreds of meters before consuming them, making them effective long-distance seed dispersers for tropical forests.
Why Fruit Alone Isn’t Enough
Fruit is an excellent source of sugar but a poor source of protein. The pulp of bat-consumed fruits averages about 33% glucose but less than 1% protein. This nutritional imbalance means fruit bats need strategies to meet their protein needs. Research tracking protein sources across five species of New World fruit bats found that plants provided most of their protein for the majority of the year. But during the transition from the rainy season to the dry season, when fruit becomes scarcer, several species shifted toward eating more insects to compensate.
Fecal analysis of fruit bats regularly turns up small amounts of insect parts and pollen alongside fruit remains. Some species, particularly smaller bats, appear to rely on insects as a significant protein supplement during lean months. Others stick almost entirely to fruit year-round, suggesting different species have evolved distinct strategies for meeting their nutritional needs. Four small-bodied bat species are classified as true nectarivores, getting more than half their diet from flowers, nectar, and pollen rather than fruit.
The Role of Fruit Bats in Forest Regrowth
Because bats fly long distances at night and pass seeds quickly, they play a distinct role in tropical forest regeneration compared to fruit-eating birds. Bats are especially important for dispersing pioneer species, the fast-growing trees and shrubs that colonize open land first. In studies of early tropical forest restoration, bats were primary dispersers for at least three pioneer tree and shrub species, and shared dispersal duties with birds for four more.
Birds, however, tend to outperform bats at bringing in later-successional species, the slower-growing trees characteristic of mature forest. Over the first six to seven years of forest restoration in one well-studied Mexican landscape, no later-successional tree species primarily dispersed by bats established in restoration plots. This suggests bats and birds play complementary rather than competing roles: bats help get forests started, and birds help them mature. Together, they move seeds of dozens of plant species into recovering landscapes, making both groups essential for healthy tropical ecosystems.